Setup of WEMOS LOLIN32 on Arduino IDE
De Wiki d'en Jordi Binefa
Installation: Arduino core for ESP32 WiFi chip
These extra libraries are needed:
A I2C display driver for SSD1306 oled displays connected to an ESP8266 or ESP32
Extra code for arduino-esp32 examples:
#ifndef D3
#define D3 5
#endif
#ifndef D5
#define D5 4
#endif
Alternative guide: ESP32 With Integrated OLED (WEMOS/Lolin) - Getting Started Arduino Style